Auto Service Professional

FEB 2018

Magazine for the auto service professional

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44 | ASP February 2018 Technical Error #2: Malfunction Indicator Lamp (MIL) (Flashing Light) If the light flashes for 60 to 90 seconds during a bulb check and then stays solid, there is a fault with the TPMS, such as the sensor, receiver, or module. Use a tool to retrieve Diagnostic Trouble Codes from the vehicle, or use a TPMS tool to read each sensor. For more information on these procedures, refer to the videos on our YouTube channel at www.youtube.com/standardbrandparts. 3. TPMS relearn e final step of any tire or TPMS-related work should be a TPMS relearn. is step will ensure that the correct ID numbers are stored in the proper location. In the event of a future fault, the relearn will indicate the correct position to the driver and future repair technician. 4. Keep an inspection sheet Once the work is complete and the money is collected, it's helpful to have an inspection sheet to show the customer. e inspection sheet should docu- ment as much information as possible, including customer infor- mation, TPMS ID numbers, DTCs, and more. Also, you can use the inspection sheet to inform the customer that 1.) a relearn was performed, and 2.) they can feel safe knowing their TPMS system is functioning and reporting properly. In the end, this simple communication can go a long way toward ensuring a successful TPMS repair and a happy customer. 5. Don't forget the service kit e Tire Industry Association (TIA), U.S. Tire Manufacturers Association (USTMA), and the Motorist Assurance Program (MAP) require that every time a tire is removed from the wheel you should replace TPMS service parts such as the valve stems, seals, washers, nuts, valve cores and caps. Advice and tips from Xtra Seal/Group 31 Inc. e following advice and recommendations are offered by John Rice of Group 31 Inc. All sensors must be programmed prior to installation. is would apply to universal programmable sensors as well as selectable programmable sensors. All sensors must have a unique ID (no two can be the same on the same vehicle). Many universal programmable sensors allow the user to create a copy/clone of the OE sensor, and it's important after the OE sensor is copied/cloned that no two sensors with the same ID end up being installed on the vehicle. Many Audi, VW, Mazda and Honda vehicles feature indirect TPMS. Vehicles equipped with indirect TPMS do not have sensors in the wheels, therefore no sensor will be detected when trying to scan/activate/ wake-up the sensors. Typically, the only service required is to inflate to the proper pressure and reset by pressing a reset button. Not all vehicles relearn the TPMS by simply driving the vehicle after TPMS service. Actually, only about one-third of all vehicles are Auto Relearn. e remaining systems are either Stationary Relearn or OBD II Relearn. Keep your TPMS tool(s) updated. It's impor- tant to update your tools whenever updates are available. Updates can include new vehicle applica- tions, new features, software fixes, etc. By keeping your tools up-to-date you'll always be ready for the next vehicle that enters your shop. Some TPMS tool manufacturers charge an annual fee (typically $200-$300) for updates, but there are some TPMS tools available with lifetime free updates. Keep sensors in stock. It is inevitable that the customer needing a replacement sensor A TPMS scan tool allows you to reprogram the TPMS tire pressure setting to accommodate a change in tire inflation as a result of a change in tire size. Photo courtesy Bartec

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